/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.druid.metadata.segment;

/**
 * Factory for {@link SegmentMetadataTransaction}s.
 */
public interface SegmentMetadataTransactionFactory
{
  /**
   * Creates and executes a new read-only transaction for the given datasource.
   * The implementation may retry the transaction until it succeeds.
   */
  <T> T inReadOnlyDatasourceTransaction(
      String dataSource,
      SegmentMetadataReadTransaction.Callback<T> callback
  );

  /**
   * Creates and executes a new read-write transaction for the given datasource.
   * The implementation may retry the transaction until it succeeds.
   */
  <T> T inReadWriteDatasourceTransaction(
      String dataSource,
      SegmentMetadataTransaction.Callback<T> callback
  );
}
